baber/WOPTO huggingface dataset:
Patent GB-1205119-A (GB)
Title: Improvements in bakers ovens
Inventor: HENSON THOMAS LESLIE
IPC: A21B1/40
Filed: 1968-12-06
Abstract: 1,205,119. Bakers ovens. BAKER PERKINS Ltd. 6 Dec., 1968, No. 58033/68. Heading A2A. In a bakers oven having one or more zones 2, 3, 4, 5 in which heaters, e.g. burners 6, are provided and there is also a thermostat 10 for controlling the heaters to maintain a substantially constant temperature in the, or each zone, in accordance with the demand of the zone, and in which a conveyer 1 carries batches of products through the oven, the thermostatic control is overridden each time leading products of a fresh batch of products to be baked enters the zone, such that heat in excess of demand is supplied to the zone for a limited period of time in order to compensate for upsets in the heat balance of the zone caused by the presence of the products. Where, as shown, a number of zones are provided, each having burners supplied with fuel by a pipe 7 via a valve 8 controlled by a thermostat, a set of cams is provided on a shaft in a sequence switching box 14, the shaft being driven from the conveyer through a one-revolution clutch which is tripped each time the leading products of a batch pass a detector 15, whereby each cam in turn closes a switch corresponding to one of the zones 2-5 as the leading products reach the respective zone, causing an override control 11 to override the main control 9 so that the valve 8 is opened or maintained open independently of the thermostat 10. The cam re-opens the switch after a predetermined time has elapsed, the shaft stopping automatically after completion of one revolution which corresponds to the time taken for the products to pass completely through the oven. Detector 15 operates with a delay so that it does not operate if the interval between successive batches of products is less than a predetermined duration. An initial zone 12 of the oven is constantly heated.
Patent GB-1338630-A (GB)
Title: Fabricating and laying underwater pipelines
IPC: F16L13/14
Filed: 1971-12-15
Abstract: 1338630 Welding by pressure BROWN & ROOT Inc 15 Dec 1971 [6 Jan 1971] 58320/71 Heading B3R [Also in Division F2] In laying an underwater pipe-line from a floating vessel a further pipe section is explosively welded to a pipe-line supported on an inclined ramp pivotally mounted on the vessel, the pipe-line depending into the water on to a submerged surface 28, the extended pipe-line is paid out into the water and the steps are repeated. In an embodiment an inclined ramp 45, Fig. 1, is pivotally mounted on a barge, two pivotally mounted work stations 45a, 45b being provided on the ramp between a clamp 34 and pipe section handling means 36. Means 38 are provided for paying the extended pipe-lineout under tension after welding. In welding a pipe section 48, Fig. 3, to a pipe-line portion 24 at work station 45a the portion 24 is provided with a frusto-conical male end 54 and the section 48 is provided with a female frusto-conical end 56 or vice versa. The section 48 and portion 24 are each provided with a first coating layer 59 of asphalt and possibly asbestos and second coating layer 59a of concrete. The ends 54, 56 are interengaged, a collar 52 is positioned about the ends in spaced relationship maintained by screws 68 and an explosive charge 50 is disposed within and in contact with the portion 24 and section 48. The charge which may comprise a number of longitudinally or helically extending circumferentially arranged sections is in contact with the inner walls of the portion 24 and section 48. The charge is detonated at the end 70 to weld the ends 54, 56 and to weld the portion 24 and section 48 to the collar 52. In a modification a seal is interposed between the ends 54, 56, the seal being of steel or neoprene, and is either trapped between the ends after detonation or forms part of the weld. In another modification a deformation resisting die is provided about the collar 52 and another explosive charge is provided about the die to assist its resistance to deformation and in yet another modification an outer explosive charge, which may be employed alone with an internal mandrel is placed in contact with the collar 52.
Patent GB-1328664-A (GB)
Title: Protection system for a static rectifier circuit
IPC: H02H7/127
Filed: 1970-12-16
Abstract: 1328664 Protecting rectifying systems; protective arrangements UDYLITE CORP 16 Dec 1970 [22 Jan 1970] 59771/70 Headings H2F and H2K In a protection system for a static rectifier, excess current on the A.C. side is arranged to phase-back controlled rectifiers 41 ... 43 rapidly and to re-phase them gradually, the A.C. side being opened after a predetermined plurality of such phasing-back cycles if the gradually increasing current exceeds preset limits. As shown in Fig. 3, the magntiude of D.C. output from the rectifier diodes, is controlled by control of the conduction angle of antiparallel thyristors 41a ... 43b under control of a current-monitoring resistor 46. Over-current protection is achieved by monitoring the current on the A.C. side by current transformers 47a ... 47c and generating a control signal dependent on the peak current so as to turn off the thyristors 41a ... 43b for at least one cycle. Fig. 4 shows the peak current detector circuit and comprises diode bridges 49a ... 49c fed from the current transformers 47a ... 47c having load resistors 51 ... 53, respectively feeding transistors 54, 55, 56 which compare the resulting voltages with a reference voltage at the junction of resistors 63, 64. When the peak current in any phase is excessive, one of transistors 54 ... 56 is turned on, turning on transistor 72 which rapidly charges capacitor 76, providing a positive output at 77 via transistor 81, which is fed to the firing circuit (not shown) which turns off thyristors 41a ... 43b. Transistor 72 is now turned off and capacitor 76 discharges through resistor 75, gradually restoring the firing control signals from terminal 77. In the event of a persistent overcurrent fault, transistors 72 and 81 are kept cyclically turned on hence capacitor 87 becomes charged via transistor 84 and eventually increases the current in transistors 86 and 89 sufficiently to operate circuit-breaker 92 associated with contacts 45 on the A.C. side. Modification.-Fig. 1 (not shown) relates to a single phase circuit in which the diode rectifiers are replaced by phase-controlled thyristors and thyristors 41a ... 43b are omitted.
Patent GB-1285747-A (GB)
Title: Glass fibre-reinforced polystyrene compositions and their manufacture
IPC: C08L25/04
Filed: 1969-12-12
Abstract: 1285747 Glass fibre-reinforced polystyrene composition ASAHI KASEI KOGYO KK 12 Dec 1969 [17 Dec 1968] 60781/69 Headings C3P and C3R A glass fibre-reinforced polystyrene composition comprises a uniform mixture of a dispersion of polystyrene in a matrix of at least 1 but less than 100% by weight, based on the weight of polystyrene, of a crystalline polyester having aromatic units in its molecular chain, and 10 to 40% by weight, based on the weight of the composition, of glass fibres covered with polyester and dispersed in the composition. The polyester may be polyethylene terephthalate or polyethylene - 2,2<SP>1</SP>- diphenoxyethane - 4,41- dicarboxylate. The composition may also contain a surfactant which may be polystyrene having carboxyl groups, or carboxy-ester groups in its molecule, or a copolymer of styrene and methacrylic acid, methyl methacrylate, ethyl methacrylate, acrylic acid, or an acrylate, or a polystyrene-polyester block copolymer. The glass fibres may be coated, before dispersion in the composition, with an aminosilane, epoxysilane or methacrylato-chromic chloride in isopropanol. The composition may be made either by blending a melt of polystyrene and the polyester, or by preparing the polyester in the presence of polystyrene, and then in each case mixing in the glass fibres.
Patent GB-1223630-A (GB)
Title: Improvements to demountable cells
IPC: G21F7/04
Filed: 1968-12-30
Abstract: 1,223,630. Shielded cells. SOC. LA CALHENE. 30 Dec., 1968 [28 Dec., 1967], No. 61707/68. Heading B4Q. The walls of a demountable shielded cell are made up of a number of rectangular elements of the same thickness but having one or both of their long dimensions differing in simple proportions whereby cells of different size may be readily constructed. As shown in Fig. 1 the cell comprises a basic square element 1 which may be provided with a window 9 and two penetrations 3 for manipulators 5. The thicknesses of all the elements are made equal to 1/12 or 1/24 the length of a side of the element 1. Other rectangular elements 13, 17, 19, 25 each have a length equal to a side of the element 1 and a width 1/2, 1/2, 1/3, 1/3, respectively, of a side of the element 1. Element 13 has a port 15 and element 19 has two penetrations 23 for tongs 21. Other rectangular elements 27, 29 each have a length equal to or double the length of a side of the element 1 and widths 1/6, 1/12, respectively, of the length of that side. The abutting surfaces of the elements have a herring. bone formation 47 and the elements are held together by plates 31, 33 and screws 35. In another embodiment (Fig. 3, not shown) the rectangular elements are mounted back-to-back to produce cell walls of double thickness.
Patent GB-625193-A (GB)
Abstract: 625,193. Sliding-clasp fasteners. UNITEDCARR FASTENER CORPORATION. March 25, 1947, No. 8121. Convention date, April 17, 1946. [Class 44] A sliding-clasp fastener comprises two intermeshing coils of wire of non-circular, e.g. semi-circular, section, each coil having a flat mating face 7 adapted for interlocking engagement with the mating face 8 of the other coil, the mating faces being so formed as to separate throughout arcs adjacent the tapes 4, 5 to provide a passage for the securing threads 6. The wire is twisted through 360 degrees in each convolution of the coil so that the mating face is inside adjacent the tape and outside diametrically opposite. The inside curvature of the arc adjacent the tape is greater than the outside curvature diametrically opposite, causing a space between the mating surfaces. Specification 608,545 is referred to.
Patent GB-1294680-A (GB)
Title: Process for stabilising soils
Inventor: GAUDARD YVES
IPC: E02D3/00
Filed: 1969-12-29
Abstract: 1294680 Synthetic filaments SOC RHODIACETA 29 Dec 1969 [31 Dec 1968] 63150/69 Heading B5B [Also in Divisions D1 and E1] In a method of constructing road or other foundations (see Division E1) wherein a waterpermeable non-woven fabric is laid over the cleared soil, the fabric may be a needle-punched "spunbonded" material formed from continuous filaments of polyester, polyolefin, or other fibre. In a specific example polyethylene terephthalate granules dried to a residual moisture content of less than 0À1% and having an intrinsic viscosity of 0À65 are fused in a single screw extruder and pumped through 0À6 mm. holes in a spinneret heated to 290 C. at a flow of 3 g./ minute/hole, the filament bundle cooling as it travels 175 cm. to a stretching nozzle supplied with air at 6 kg./cm.<SP>2</SP> gauge. After stretching the filaments have average gauge of 9 den., elongation 130% and tenacity 3À2 g./den. The bundle of oriented filaments is laid down by an oscillating deflector on to an endless moving belt to form a non-woven web of random continuous filaments weighing about 280 g./m.<SP>2</SP>. The web is 'then passed between heated rollers (120 C.) at 8 mm. spacing and finally needle punched to give a piercing density of 80 strokes/cm.<SP>2</SP> and a thickness of about 3 mm. The resulting web weighs about 300 g./m.<SP>2</SP>.
Patent GB-671720-A (GB)
IPC: B21C37/09
Abstract: 671,720. Making tubes; soldering. BUNDY TUBING CO. Feb. 6, 1950, No. 2959/50. Classes 83 (ii) and 83 (iv). A method of making tube from longitudinallymoved copper coated strip stock comprises applying metal having a melting-point lower than that of the copper to a portion only of the stock, forming the stock into tubing with a seam or ply so that the applied metal lies between the interfaces while copper coating is superficially disposed, passing the tube through a heating zone to melt the applied metal so that it alloys with the copper of the coating to form a brazing alloy, the temperature being below the melting- point of the copper, and cooling the tube. In an embodiment, strip steel stock 3 having a body 7 and copper coatings 4, 5 is passed from a supply reel, under a nozzle which sprays metal, e.g. tin or zinc, supplied from a reel, on to about half the surface of the upper coating 4 to form a layer 6. The stock 3 is then passed through bevelling rollers, which by pressure, form the faces 21, 22, before passing through a tube mill in which the stock 3 is fashioned through 720 degrees about an arbor into double-ply tubing. The formed stock 3 has added metal 6 extending between the plies from the face 22 to opposite the face 21. The tube is passed through a furnace supplied with a reducing or non- oxidizing atmosphere, to raise the tube to a temperature to melt the added metal 6 to form a copper predominant alloy with the adjacent copper coatings, which then constitutes a brazing metal 8. The temperature is not high enough to melt the remainder of the copper coatings. From the furnace the tube is passed through a cooler and the final tube has internal and external copper coatings with brazing- metal 8 between the plies and at the points 8a, 8b. The furnace may be replaced by a roller electrode device. The term copper includes copper and copper alloys.
Patent GB-704647-A (GB)
IPC: G07B1/02
Abstract: 704,647. Totalizators; ticket-issuing machines. AUTOMATIC TOTALISATORS, Ltd. Jan. 28, 1952 [Feb. 2, 1951], No. 2309/52. Classes 106 (1) and 106 (3) In a race totalization ticket issuing machine comprising a dial plate with a series of competition numbers marked thereon, an operating handle which may be rotated over the number series to position a typewheel, halted in register with a selected number then depressed to initiate automatic printing and issuing of a ticket bearing the selected number there is at least one additional type wheel movably concertedly with the first in accordance with the turning movement of the operating handle, the type wheels being so mounted that one of them can be selectively positioned for printing on the ticket. In the example described the first printing wheel 11, Fig. 2, is driven through gearing 14, 13 and 4 from the operating handle, not shown, to print a competitor number. The wheel 11 drives an additional wheel 12 by a pin 15 which enters a slot 16 in the wheel 12. The wheel 12 has a series of type surfaces bearing pairs of competitors numbers for printing tickets for forecast bets. The wheels 11 and 12 are mounted on eccentric hubs of a sleeve 17 which carries a pinion 19 which meshes with a rack 20 movable between two extreme positions. The arrangement is such that with the rack 20 in one position the wheel 11 is moved to the right to the position for printing on the ticket strip 9 through ink ribbon 10 when the platen 5 is moved whereas in the other position of the rack 20 the wheel 11 is retracted and the wheel 12 is brought to the printing position. The rack 20 carries a contact, Fig. 1 (not shown), which in either position of the rack closes the circuit to the appropriate adding unit. Specification 441,422 is referred to.
Patent GB-2022511-A (GB)
Title: Method of recording images on a radiation sensitive material
IPC: B41M5/26
Filed: 1978-06-07
Abstract: A method of recording images on a radiation sensitive material comprising the steps as follows: a layer is formed using a radiation sensitive material comprising a heterogeneous mixture of substances, at least one of which substances being used as a solvent 1 and being capable of converting its states of aggregation in the mixture under the action of the intrinsic or reflected radiation obtainable from the object being recorded and the other(s), present in said heterogenous mixture of substances in the form of particles 2, being capable of interacting with a force field H; an image of the object being recorded is projected on the layer using the intrinsic or reflected radiation L of the object, and the projected image is fixed by converting the state of aggregation of the substance serving as the solvent. <IMAGE>
Patent GB-2023930-A (GB)
Title: Improvements in variable capacitors
IPC: H01G5/14
Filed: 1978-06-13
Abstract: The capacitor is a piston multi- turn type and comprises a dielectric tube (10) bearing a stator electrode (22) on the external surface and receiving the piston (24). The latter is axially displaced in the tube by a lead-screw (48). Rotation of the piston is prevented by two resilient rings (28, 30) secured there around and a force fit against the inside of the tube; these bands providing a friction against the tube sufficient to resist the torque from the lead screw. <IMAGE>
Patent GB-2002569-A (GB)
Title: Lead battery and process for manufacture thereof
IPC: H01M4/57
Filed: 1978-06-27
Abstract: A lead battery comprises an active material derived from a lead monoxide. The lead monoxide has a density of 8.3 to 9.2 g/cc, an average particle size not larger than O.2 mu , an infrared absorption peak at a wave number of 1400 to 1410 cm<-1> and a chromatic anhydride reactivity of at least 94% or a heat- treatment product thereof. Starting materials previously used in the preparation of active materials for lead batteries have usually been prepared by the dry oxidation of metallic lead, with attendant pollution problems, and are of relatively high density and particle size and difficult to convert entirely into active materials. This lead battery has an improved active material utilization ratio which can be maintained at a high level over a long period, a long life and good electrical properties. The lead monoxide is formed from lead granules by wet pulverization in a rotary mill in the presence of oxygen.
Patent GB-2001713-A (GB)
Title: Clutch with coolant flow control
IPC: F16D13/72
Filed: 1978-07-03
Abstract: In a clutch with coolant flow over cooperating clutch members 20, means 55 are provided for shutting off the coolant flow during the initial stage of clutch engagement and initiating coolant flow when the actuating force on the clutch members is at a higher value. This reduces the drag torque of the clutch and the delay in operation. Preferably the clutch is hydraulically actuated, with a predetermined hydraulic control pressure being needed to bring the clutch plates into clutching engagement and a greater hydraulic control pressure being needed to open one or more coolant flow passages 50 to the clutch members. The same control pressure preferably acts both on the clutch actuator 25 and on a piston 60 controlling a coolant flow control valve 55 within a clutch drum. Such a clutch is of use in a jet engine start system. <IMAGE>
Patent GB-2009833-A (GB)
Title: Steering column lock for motor vehicles
IPC: B60R25/021
Filed: 1978-10-19
Abstract: In a steering column lock for vehicles of the kind in which a barrel lock is arranged only to release the bolt completely (to allow it to move under spring loading to the locking position) when the key 17 is withdrawn, a two-armed lever 13 is pivoted in the barrel 1, one arm of the lever bearing against the key and the other holding the barrel in the bolt-holding position until removal of the key 17 allows the lever 13 to pivot, so arranged that on re-insertion, the barrel is turned without having to move it axially against spring loading the axial movement of the barrel being achieved as it is turned by a plunger 7 in the lock housing 2 co- operating with a helical groove 9 in the surface of the lock barrel 3. <IMAGE>
Patent GB-787309-A (GB)
IPC: C06F1/26
Abstract: 787,309. Splints for matches. AKTIEBOLAGET SIEFVERT & FORNANDER. Feb. 28, 1956, No. 6190/56. Class 50. In a process for treating splints for matches, the splints are fed through an inlet 5 (Fig. 2) to a casing 4 containing a rotating impact wheel 2 having two rows of axial rods 7 mounted between a disc 35 and an annular member 10 and carrying rows of radial link rods 8, the arrangement being such and the speed of.rotation of the impact wheel chosen so that the splints are brought into contact with the rods 7 or 8 with such a force that splints having a bending strength of less, for example 20 per cent less, than the average strength of perfect splints are broken in passing through the impact wheel to an outlet 6. The impact wheel 2 is rotated by an electric motor 1 and provides a fauning action to convey the splints. The disc 35 is mounted on a curved hub 9 fixed to the horizontal shaft 3 of the motor 1. Broken splints are afterwards removed in a separate operation. In a modification, the impact wheel is mounted on a hollow vertical shaft and a feed wheel arranged within the impact wheel and rotatable on a shaft passing through the hollow shaft. The feed wheel has a conical hub with a series of upstanding radial fins and the two wheels are driven by separate motors so that any required relative speed may be attained. In a modified form of impact wheel, baffles are mounted between a single row of axial rods forming with the disc and annular member a series of four-sided passages.
Patent GB-2038618-A (GB)
Title: A water-driven toothbrush and water-pick assembly
IPC: A61C17/38
Filed: 1979-01-05
Abstract: A water-driven toothbrush and water-pick assembly is provided having a housing 1, a handle 3 pivotally attachable to the housing 1 and an elongated toothbrush arm 2 with a brush 41 and water-pick outlet 43 at one end, attachable to the housing also. A water turbine rotor 11 in the housing 1 is connected to the arm 2 via an eccentric link 30 for converting rotary motion of the rotor 11 into agitating pivotal movement of the arm 2 and brush 41. The handle 3 can be pivoted between two positions in one of which water supplied to the handle 3 can be passed to the rotor 11 and exhausted from the handle 3 to actuate the toothbrush arm 2 only to clean a user's teeth and in the other of which water supplied to the handle 3 can be passed to the water-pick outlet 43 only to provide a water jet for cleaning crevices between the user's teeth. <IMAGE>
Patent GB-2014030-A (GB)
Title: Butanone derivatives process for preparation thereof and the organoleptic use thereof
IPC: A23L27/20
Filed: 1979-01-25
Abstract: The invention relates to the use of cyclohexadienyl butanone derivative(s) having the generic structure:   <IMAGE>  wherein X represents one of:   <IMAGE> in a consumable material, especially for augmenting or enhancing the aroma or taste or organoleptic properties thereof. There is also provided corresponding flavor augmenting or modifying compositions, 1-(2,6,6-trimethyl-1,3-cyclohexadien- 1-yl)-1,3-butanedione having the structure:   <IMAGE> per se, an equilibrium mixture containing compounds having the structures:   <IMAGE> as well as a process of preparing such a mixture and an organometallic compound having the structure:   <IMAGE> wherein X represents halogen selected from chloro, bromo and iodo. The consumable material may be a foodstuff, chewing gum, toothpaste, medicinal product, tobacco, perfume, soap or detergent.